---
session_id: "session_20260507_d2r8v5"
branch: "feat/domain-gap-remediation-plan"
created_at: "2026-05-07T00:00:00Z"
current_mode: "review"
version: "1.0"
---

## Session Overview

**Branch:** feat/domain-gap-remediation-plan
**Started:** 2026-05-07 UTC
**Current Mode:** review

## Mode History

| Mode | Entered | Exited | Summary |
|------|---------|--------|---------|
| review | 2026-05-07 | - | Thorough read-only review of all domain implementations to identify gaps |

## Actions Taken

### 2026-05-07 — review mode
- Created branch feat/domain-gap-remediation-plan (no ticket ID, by user direction)
- Spawned 6 parallel Explore agents — one per domain group — each reading every Python file individually
- All 6 agents completed; findings synthesized
- Created `planning/domain-gap-remediation-plan.md`
- Rewritten plan after user correction: validation + correct return type ≠ implementation; re-audited all domains
- Spawned 4 parallel input-assumption audit agents (agents+data, connectors+ml, signal+oilgas, health)
- Added Part III to plan: full implicit input schema assumption audit across all domains

## Context Summary

**Goal:** Review all domain implementations under pirn/domains/, identify skeleton/incomplete code, missing implementations, broken references, and produce a remediation plan documented in planning/.

**Scope:** Read-only on code. Write to planning/ directory only.

**Result:**
- 1,195 files audited across agents, data, connectors, ml, signal, oilgas, health
- ml: 100% hollow (SHA-256 everywhere); signal: 100% hollow (no scipy calls); oilgas: ~68% hollow; health: ~75% hollow
- ~370 files need real implementations
- Input assumption audit: 38 files with silent `.get()` key risks across oilgas (11 critical), health (10 high), connectors (12 high), agents (3 medium), data (3 medium)
- P0 critical: vcf_filter.py (inverted allele-frequency filter), all 11 oilgas production measurement files

**Deliverables:**
- `planning/domain-gap-remediation-plan.md` — full gap inventory + 8-phase remediation plan + input assumption audit (Part III)

## Notes
- No ticket ID — branch named feat/domain-gap-remediation-plan by user direction
